                body {
                    margin: 0;
                    padding: 0;
                    background-color: rgb(243, 226, 229);
                    font-family: 微软雅黑;
                }
                
                .nav {
                    width: 100%;
                    height: 80px;
                    position: fixed;
                    top: 0;
                    /* 悬浮在最上方 */
                    z-index: 10;
                    background-image: linear-gradient(rgb(0, 81, 255), rgba(0, 43, 99, 0));
                }
                /* 导航栏开始*/
                
                .logo {
                    width: 62px;
                    height: 80px;
                    background: url(../imgs/logo.png);
                    float: left;
                    margin-left: 10%;
                }
                
                .nav ul li {
                    width: 150px;
                    height: 80px;
                    float: left;
                    border-radius: 10px;
                    list-style-type: none;
                    text-align: center;
                    margin-left: 2%;
                    background-color: transparent;
                }
                
                .nav ul li a {
                    text-decoration: none;
                    color: rgba(255, 255, 255, 0.733);
                    display: block;
                    /* 跟随父元素高度 */
                    height: inherit;
                    line-height: 80px;
                }
                
                .nav ul li:hover {
                    background-color: rgba(0, 0, 255, 0.534);
                }
                /* ------------------导航栏结束 ------------*/
                /* 焦点图开始 */
                
                .banner {
                    width: 100%;
                    height: 470px;
                    background-image: url(../imgs/show1.jpg);
                }
                
                .banner:hover {
                    width: 120%;
                }
                /* 焦点图结束 */
                /* 路线指引 */
                
                .path {
                    position: relative;
                    left: 88%;
                    z-index: 8;
                }
                
                .path span a {
                    font-size: 14px;
                    text-decoration: none;
                    color: black;
                }
                
                .path span a:hover {
                    color: rgb(175, 42, 60);
                    transition-duration: 0.5s;
                    transition-timing-function: linear;
                    transition-property: all;
                }
                /* 左板块开始 */
                
                .sd_nav {
                    width: 45%;
                    height: 2200px;
                    background-color: rgb(249, 239, 241);
                    z-index: 1;
                    position: relative;
                    bottom: 130px;
                    float: left;
                }
                /* 左板块主体 */
                /* 左板块的红头标开始*/
                
                .nav_tab {
                    width: 100%;
                    height: 120px;
                    background-color: rgb(175, 42, 60);
                    z-index: 2;
                    line-height: 120px;
                }
                /* 左板块的红头标 结束 */
                /* 红头标导语 开始 */
                
                .nav_tab span {
                    font-size: 40px;
                    color: white;
                    margin-left: 20%;
                }
                /* 红头标导语 结束 */
                /* 左板块导航栏开始 */
                
                .nav_tab2 {
                    margin: 0 auto;
                    line-height: 60px;
                    margin-top: 10%;
                    margin-left: 8%;
                }
                
                .nav_tab2 ul li {
                    list-style-type: none;
                }
                
                .nav_tab2 ul li span {
                    font-size: 25px;
                    width: 70%;
                    height: 60px;
                    display: inline-block;
                    border-style: none none solid none;
                    border-width: 0 0 3px 0;
                    border-color: rgb(175, 42, 60);
                }
                
                .nav_tab2_sd {
                    width: 70%;
                    height: 60px;
                    display: inline-block;
                    border-style: none none solid none;
                    border-width: 0 0 3px 0;
                    border-color: rgba(175, 42, 60, 0.1);
                }
                
                .nav_tab2_sd_main {
                    width: 70%;
                    height: 60px;
                    display: inline-block;
                    border-style: none none solid none;
                    border-width: 0 0 3px 0;
                    border-color: rgba(175, 42, 60, 0.1);
                }
                
                .nav_tab2_sd_main a {
                    text-decoration: none;
                    color: rgb(175, 42, 60);
                }
                
                .nav_tab2_sd_main a:hover {
                    margin-left: 5%;
                    color: rgb(175, 42, 60);
                    transition-duration: 0.5s;
                    transition-timing-function: linear;
                    transition-property: all;
                }
                
                .nav_tab2_sd a {
                    text-decoration: none;
                    color: black;
                }
                
                .nav_tab2_sd a:hover {
                    margin-left: 5%;
                    color: rgb(175, 42, 60);
                    transition-duration: 0.5s;
                    transition-timing-function: linear;
                    transition-property: all;
                }
                /* 左板块导航栏结束 */
                
                .subnav {
                    width: 55%;
                    height: 2000px;
                    background-color: white;
                    z-index: 3;
                    position: relative;
                    float: left;
                    margin-top: 7%;
                    right: 8%;
                }
                
                .subnav_title_one {
                    border-style: none none solid none;
                    width: 86%;
                    height: 60px;
                    border-color: rgb(175, 42, 60);
                    font-size: 26px;
                    display: inline-block;
                    margin-top: 4%;
                    margin-left: 7%;
                }
                
                .subnav_show_one {
                    width: 86%;
                    height: 18%;
                    background-image: url(../imgs/show2.JPG);
                    margin-left: 7%;
                    margin-top: 6%;
                    background-size: 100%;
                }
                
                .subnav_text_one {
                    width: 86%;
                    height: 60%;
                    margin-left: 7%;
                    margin-top: 2%;
                }
                /* 设置行距 */
                
                .subnav_text_one p {
                    line-height: 150%;
                    font-family: 宋体;
                }